build(deps): bump StyleCop.Analyzers in /suppliers/src/API

Bumps [StyleCop.Analyzers](https://github.com/DotNetAnalyzers/StyleCopAnalyzers) from 1.2.0-beta.435 to 1.2.0-beta.556.
- [Release notes](https://github.com/DotNetAnalyzers/StyleCopAnalyzers/releases)
- [Changelog](https://github.com/DotNetAnalyzers/StyleCopAnalyzers/blob/master/documentation/KnownChanges.md)
- [Commits](DotNetAnalyzers/StyleCopAnalyzers@1.2.0-beta.435...1.2.0-beta.556)

---
updated-dependencies:
- dependency-name: StyleCop.Analyzers
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

suppliers/src/API/EMBC.Suppliers.API/EMBC.Suppliers.API.csproj

@@ -32,7 +32,7 @@
         <PackageReference Include="Serilog.Sinks.Console" Version="5.0.1" />
         <PackageReference Include="Serilog.Sinks.Splunk" Version="4.1.0" />
         <PackageReference Include="SerilogTraceListener" Version="3.2.0" />
-        <PackageReference Include="StyleCop.Analyzers" Version="1.2.0-beta.435">
+        <PackageReference Include="StyleCop.Analyzers" Version="1.2.0-beta.556">
             <PrivateAssets>all</PrivateAssets>
             <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
         </PackageReference>